As the maker of tailpipe-free electric vehicles, Tesla is perhaps the last auto manufacturer you’d expect to struggle with an NOx emissions problem. Yet like any other auto manufacturer, Tesla operates factories which produce a variety of emissions including the NOx carcinogens at the center of the recent Volkswagen scandal. In fact, Dailykanban has discovered that Tesla has self-reported an NOx noncompliance at its Fremont, CA factory that may be contributing to delays in the production of the firm’s new Model X SUV.